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Question 9561Question →

Which of the following factors will cause an outward (rightward) shift in the supply curve of a manufactured commodity?

An improvement in technology that reduces production costs

An increase in the market price of the commodity itself

The imposition of an indirect tax on the commodity

An increase in the prices of essential raw materials

Show answer & explanation

Answer: An improvement in technology that reduces production costs

Answer

An improvement in technology that reduces production costs

Technological advancement reduces unit production costs, making production more profitable and causing producers to supply more output at all price levels. This shifts the supply curve outward to the right.

Step-by-Step Solution

Distinguish between a shift in the supply curve and a movement along the supply curve.

A change in the commodity's own price causes movement along the curve. Non-price determinants cause the entire curve to shift.

Only non-price factors (like technology, input costs, taxes, and subsidies) shift the supply curve.

Determine the direction of the supply curve shift for each non-price factor.

Favorable factors (technological progress, government subsidies, lower input costs) shift supply rightward. Unfavorable factors (higher taxes, higher input costs) shift supply leftward.

An improvement in technology reduces cost per unit, encouraging producers to offer a larger quantity for sale at every price level.

Key Concept

Determinants of Supply and Curve Shifts

Question 9562Question →

A consumer achieves equilibrium under the ordinal utility framework while purchasing Good $X$ and Good $Y$ . If the market price of Good $X$ is $\text{₦}150$ and the market price of Good $Y$ is $\text{₦}50$ , calculate the Marginal Rate of Substitution of Good $X$ for Good $Y$ ( $MRS_{xy}$ ) at the equilibrium point.

Show answer & explanation

Answer: 3

Answer

The Marginal Rate of Substitution of Good

X

for Good

Y

(

MRS_{xy}

) at the consumer's equilibrium point is

3

In ordinal utility theory, consumer equilibrium occurs where the budget line is tangent to the highest attainable indifference curve. At this tangency point, the slope of the indifference curve—known as the Marginal Rate of Substitution (

MRS_{xy}

)—equals the ratio of the prices of the two goods (

\frac{P_x}{P_y}

). Given

P_x = \text{₦}150

and

P_y = \text{₦}50

MRS_{xy} = \frac{150}{50} = 3

Step-by-Step Solution

State the consumer equilibrium condition under ordinal utility analysis.

MRS_{xy} = \frac{P_x}{P_y}

At the point of consumer equilibrium, the indifference curve is tangent to the budget line, meaning their slopes are equal.

Substitute the prices of Good

X

and Good

Y

to find the ratio.

MRS_{xy} = \frac{150}{50} = 3

Dividing the price of Good

X

(₦150) by the price of Good

Y

(₦50) yields the slope of the budget line.

Key Concept

Consumer Equilibrium Tangency Condition

Question 9563Question →

Match each type of monopoly origin listed on the left with its corresponding defining operational basis on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Statutory Monopoly pairs with exclusive government charters; Natural Monopoly pairs with continuous economies of scale; Raw Material Monopoly pairs with absolute control of vital inputs; Technological Monopoly pairs with patent protection for technical inventions.

Each classification of monopoly power corresponds directly to its underlying barrier to entry: statutory monopolies stem from legal government decrees, natural monopolies arise from substantial economies of scale, raw material monopolies are rooted in exclusive resource ownership, and technological monopolies originate from patent-protected innovations.

Step-by-Step Solution

Examine legal and institutional sources of monopoly power.

Statutory monopoly relies on legislative backing and legal barriers, whereas technological monopoly relies on patent protection for inventions.

Different legal protections define distinct barriers to entry.

Analyze structural economic conditions leading to single-firm dominance.

Natural monopoly is driven by significant economies of scale, causing unit costs to drop as output expands.

Duplicate infrastructure would result in higher average costs for consumers.

Identify physical resource dominance as an entry barrier.

Raw material monopoly is secured through complete control of essential natural resources.

Competitors cannot manufacture the final good without access to the critical raw material.

Key Concept

Sources of Monopoly Power and Barriers to Entry

Question 9564Question →

Match each monetary policy action executed by a central bank on the left with its corresponding macroeconomic objective and operational mechanism on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Increasing the CRR and selling treasury bills matches reducing the monetary base to curb demand-pull inflation. Decreasing the Bank Rate and lowering the Liquidity Ratio matches expanding loanable funds to fight recessions. Imposing selective credit controls matches rationing credit to inflationary sectors while preserving essential sectors. Employing moral suasion and special deposits matches combining informal persuasion with mandatory liquidity freezing.

The correct pairings accurately match each central bank policy combination to its intended economic goal and operational mechanism. Contractionary quantitative tools (higher CRR and OMO sales) curb demand-pull inflation by reducing excess reserves. Expansionary quantitative tools (lower Bank Rate and Liquidity Ratio) boost liquidity to fight recessions. Selective credit controls target specific sector allocations, and moral suasion combined with special deposits utilizes persuasive guidance backed by targeted reserve freezes.

Step-by-Step Solution

Analyze the action of raising CRR and conducting Open Market Sales.

Identified as a contractionary quantitative monetary policy.

Both tools drain commercial bank excess liquidity and contract the money supply to combat high inflation.

Analyze the action of reducing the Bank Rate and lowering the Liquidity Ratio.

Identified as an expansionary quantitative monetary policy.

Lowering interest benchmarks and reserve thresholds releases loanable funds to stimulate investment during economic downturns.

Analyze selective credit controls and credit ceilings.

Identified as qualitative (selective) monetary policy instruments.

These measures target the directional flow of credit rather than overall money quantity.

Analyze moral suasion paired with special deposits.

Identified as a combination of informal operational influence and direct reserve immobilization.

Moral suasion appeals to commercial banks voluntarily while special deposits impound specific funds.

Key Concept

Monetary Policy Tools and Macroeconomic Stabilization

Estimated Time:2m 0s

Question 9565Question →

In a comparative evaluation of economic systems, how does a mixed economy attempt to resolve the primary conflict between allocative efficiency and social equity found in pure free market and command systems?

By completely abolishing private property while relying on the price mechanism to allocate essential public goods.

By allowing price signals to guide private sector resource allocation while using government policy to provide public goods and redistribute income.

By relying exclusively on state production planning for consumer goods while leaving national infrastructure to unregulated market forces.

By eliminating market competition entirely to ensure that consumer sovereignty determines national production priorities.

Show answer & explanation

Answer: By allowing price signals to guide private sector resource allocation while using government policy to provide public goods and redistribute income.

Answer

A mixed economy resolves the conflict between allocative efficiency and social equity by allowing price signals to guide private sector resource allocation while using government policy to provide public goods and redistribute income.

A mixed economy synthesizes the advantages of both market and command systems. It leverages the price mechanism in the private sector for efficient resource allocation and consumer responsiveness, while utilizing government intervention to correct market failures, supply public goods, and ensure social equity through taxation and redistribution.

Step-by-Step Solution

Analyze the trade-offs of free market and command economies.

Free market economies maximize allocative efficiency via price signals but often create income inequality and underprovide public goods. Command economies focus on equity and state goals but suffer from inefficiencies and lack consumer choice.

Understanding the failure points of pure systems reveals why mixed systems exist.

Identify the structural solution provided by a mixed economic system.

A mixed economy retains the private sector and price mechanism to achieve market efficiency in consumer goods while empowering the public sector to intervene where markets fail.

The synthesis of private market efficiency and public regulation balances growth with social welfare.

Key Concept

Comparative Evaluation of Mixed Economy Trade-offs

Estimated Time:1m 0s

Question 9566Question →

Match each Nigerian public economic policy reform on the left with its corresponding core objective and ownership outcome on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Indigenization Policy matches with increasing indigenous equity participation in foreign-owned firms; Privatization Policy matches with transferring state equity ownership to private investors; Full Commercialization Policy matches with reorganizing enterprises for profit while retaining full government ownership.

Indigenization increases Nigerian equity ownership in foreign enterprises, Privatization transfers public enterprise ownership to private entities, and Commercialization mandates profit-oriented operation for state-owned enterprises without altering government ownership.

Step-by-Step Solution

Analyze the core mechanism of Indigenization Policy.

It legally mandates a designated percentage of equity participation for local citizens in foreign companies operating domestically.

Promoted indigenous ownership under the Nigerian Enterprises Promotion Acts.

Analyze the core mechanism of Privatization Policy.

It reduces state involvement by selling public enterprise shares to private owners.

Privatization changes ownership from public to private hands.

Analyze the core mechanism of Full Commercialization Policy.

It forces public enterprises to be self-sustaining and commercially driven while maintaining complete government ownership.

Commercialization alters operational strategy and funding sources without transferring state equity.

Key Concept

Distinction between Indigenization, Privatization, and Commercialization Policies

Question 9567Question →

In contrast to the rigid five-year medium-term National Development Plans implemented in Nigeria prior to 1990, the three-year Rolling Plan framework was adopted primarily to accomplish which of the following planning objectives?

Allow continuous annual adjustments of development targets in response to resource constraints and macroeconomic fluctuations

Transfer equity ownership of key state-owned enterprises to private investors to reduce government operational deficits

Establish unalterable twenty-year long-term structural targets that remain completely independent of annual budget cycles

Protect domestic infant manufacturing industries by placing total bans and high protective tariffs on imported consumer goods

Show answer & explanation

Answer: Allow continuous annual adjustments of development targets in response to resource constraints and macroeconomic fluctuations

Answer

The primary objective of adopting three-year rolling plans was to allow continuous annual adjustments of development targets in response to resource constraints and macroeconomic fluctuations.

The three-year rolling plan framework introduced in Nigeria in 1990 aimed to remedy the rigidity of previous fixed five-year development plans. Under a rolling plan system, planning targets were evaluated and adjusted every year alongside the annual budget, enabling planners to adapt to crude oil revenue fluctuations and economic shocks.

Step-by-Step Solution

Analyze the major limitation of Nigeria's fixed five-year National Development Plans (1962–1985).

Fixed plans were rigid and highly susceptible to unexpected shocks, such as volatile crude oil revenues, leading to widespread project abandonment.

Fixed plan targets could not be dynamically modified when actual government revenues fell far below projections.

Examine the structural design of the 3-Year Rolling Plan framework introduced in 1990.

Rolling plans maintained a 3-year horizon that was reviewed, updated, and extended by one year at each annual budget cycle.

This rolling mechanism ensured tight alignment between annual capital expenditure budgets and real-time economic conditions.

Evaluate option choices against distractor policy frameworks.

Continuous target adjustment is the defining feature of rolling plans.

Privatization alters asset ownership, perspective plans fix long-term horizons without annual revisions, and import substitution is a trade strategy.

Key Concept

Features and Rationale of Rolling Development Plans in Nigeria

Estimated Time:2m 0s

Question 9568Question →

A commercial farming enterprise in Nigeria allocates its available acreage between growing yam and growing cassava, as both crops compete for the same land and labor resources. If the market price of yam rises sharply while the market price of cassava remains constant, what is the direct impact on the cassava market?

The supply curve of cassava shifts to the left because resources are reallocated toward yam production.

There is a movement downward along the cassava supply curve as producers reduce the quantity of cassava supplied.

The supply curve of cassava shifts to the right because yam and cassava are produced jointly.

The supply curve of cassava remains unchanged because the price of cassava itself has not changed.

Show answer & explanation

Answer: The supply curve of cassava shifts to the left because resources are reallocated toward yam production.

Answer

The supply curve of cassava shifts to the left because resources are reallocated toward yam production.

Yam and cassava are in competitive supply because they compete for the same productive inputs (farmland and labor). When the price of yam increases, farmers gain a higher profit margin on yam and shift resources away from cassava production. Since this change is driven by a factor other than the price of cassava itself, it constitutes a change in supply, causing the cassava supply curve to shift to the left.

Step-by-Step Solution

Identify the relationship between the two goods in production

Yam and cassava use the same land and labor resources, making them goods in competitive supply (substitutes in production).

Understanding whether goods are in competitive or joint supply determines how price changes in one good affect the supply of the other.

Analyze the profit incentive created by the price change of yam

A higher price for yam increases the profitability of yam relative to cassava.

Producers seek to maximize profit and will divert land and labor away from cassava toward yam.

Determine the impact on the supply of cassava

Less cassava will be supplied at every price level, causing a leftward shift of the cassava supply curve (a decrease in supply).

A change in the price of a competitive product acts as a non-price determinant, shifting the entire supply curve rather than moving along it.

Key Concept

Competitive Supply and Non-Price Determinants of Supply

Estimated Time:1m 30s

Question 9569Question →

Match each fundamental function of the central bank on the left with its corresponding operational role on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Issuer of Legal Tender matches with exercising sole constitutional authority to print and mint the national currency. Lender of Last Resort matches with providing emergency liquidity assistance to commercial banks facing temporary liquidity shortages. Banker to Commercial Banks matches with holding statutory cash reserves and facilitating interbank clearing. Banker to the Government matches with managing public treasury accounts and servicing public debt.

Each central banking role corresponds directly to its traditional institutional obligation: issuing legal tender relates to currency production, lender of last resort involves emergency liquidity, banker to commercial banks handles reserves and clearing, and banker to the government handles public fiscal accounts.

Step-by-Step Solution

Identify the currency issuing role

Issuer of Legal Tender pairs with sole authority to issue banknotes and coins.

Only the central bank has legal authority to produce legal currency.

Identify the financial safety net function

Lender of Last Resort pairs with providing emergency liquidity during liquidity crises.

This function protects the banking system from panic runs.

Identify the commercial bank services function

Banker to Commercial Banks pairs with reserve holdings and clearing operations.

Commercial banks maintain accounts at the central bank for statutory reserves and clearing.

Identify the fiscal agent function

Banker to the Government pairs with treasury account management and debt servicing.

The central bank manages government accounts and handles national debt issuance.

Key Concept

Functions of the Central Bank

Question 9570Question →

In a mixed economic system, while market forces regulate private goods, how is the basic economic problem of 'what to produce' resolved for non-excludable public goods such as national defense and public roads?

By direct government planning and budgetary allocation based on social welfare priorities

By the automatic interaction of consumer demand and producer supply via the price mechanism

By ancestral customs and traditional practices handed down through generations

By profit-maximizing private enterprises competing for consumer votes

Show answer & explanation

Answer: By direct government planning and budgetary allocation based on social welfare priorities

Answer

In a mixed economic system, the decision of 'what to produce' for public goods is determined by direct government planning and budgetary allocation based on social welfare priorities.

In a mixed economic system, resource allocation is split between the private sector and the public sector. For public goods (like national defense and public roads), market forces fail due to non-excludability and the free-rider effect. Therefore, the government answers the fundamental question of 'what to produce' by directly planning and allocating tax revenues through state budgetary decisions focused on social welfare.

Step-by-Step Solution

Identify the economic system and the specific category of goods described in the question.

The context specifies a mixed economic system dealing with non-excludable public goods.

Mixed economies divide resource allocation roles between the market mechanism and state intervention.

Analyze how public goods create market failure under pure price mechanism allocation.

Public goods are non-rivalrous and non-excludable, leading to the free-rider problem where private firms cannot profitably produce them.

Since the price mechanism cannot efficiently price public goods, the state must intervene.

Determine the government's role in answering 'what to produce' for public goods in a mixed economy.

The government allocates public revenue through state budgetary decisions and central social planning.

This ensures essential public infrastructure and defense services are produced despite market limitations.

Key Concept

Division of resource allocation responsibilities in a mixed economy for public vs. private goods

Estimated Time:45s

Question 9571Question →

A consumer allocates a monthly income of $\text{₦}12,000$ between Good $X$ and Good $Y$ . The market price of Good $Y$ is $\text{₦}400$ per unit. At consumer equilibrium under ordinal utility analysis, the consumer purchases $15$ units of Good $Y$ . If the Marginal Rate of Substitution of Good $X$ for Good $Y$ ( $MRS_{xy}$ ) at this equilibrium point is $1.5$ , how many units of Good $X$ does the consumer purchase?

Show answer & explanation

Answer: 10

Answer

10 units

Under ordinal utility theory, consumer equilibrium occurs at the point of tangency between the highest attainable indifference curve and the budget line, satisfying

MRS_{xy} = \frac{P_x}{P_y}

. Given

MRS_{xy} = 1.5

and

P_y = \text{₦}400

, the price of Good

X

P_x = 1.5 \times 400 = \text{₦}600

. Spending

15

units of

Y

\text{₦}400

consumes

\text{₦}6,000

of the total

\text{₦}12,000

budget, leaving

\text{₦}6,000

for Good

X

. Dividing

\text{₦}6,000

P_x = \text{₦}600

yields exactly

10

units of Good

X

Step-by-Step Solution

Calculate the total expenditure on Good Y

₦6,000

Multiply the equilibrium quantity of Y (15 units) by the unit price of Y (₦400).

Determine the remaining budget allocated to Good X

₦6,000

Subtract total expenditure on Y from the overall income (₦12,000 - ₦6,000).

Calculate the unit price of Good X using the ordinal equilibrium condition

₦600

At consumer equilibrium under ordinal utility, the slope of the indifference curve equals the slope of the budget line (

MRS_{xy} = \frac{P_x}{P_y}

). Thus,

1.5 = \frac{P_x}{400} \Rightarrow P_x = 600

Calculate the quantity of Good X purchased

10 units

Divide the expenditure on Good X (₦6,000) by the price of Good X (₦600).

Key Concept

Consumer Equilibrium under Ordinal Utility

Question 9572Question →

Match each economic system listed on the left with its defining structural feature on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Free Market Economy corresponds to private ownership and consumer sovereignty; Command Economy corresponds to public ownership and central planning; Mixed Economy corresponds to dual ownership by private enterprise and government; Traditional Economy corresponds to reliance on customs and historical habits.

Each economic system has a distinct framework for resource allocation and ownership. The Free Market Economy relies on private ownership of property and consumer choice driven by price signals. The Command Economy is controlled centrally by government planners who own key industries. The Mixed Economy combines market forces with state regulation to balance efficiency and public welfare. The Traditional Economy organizes production around cultural customs, traditions, and hereditary roles.

Step-by-Step Solution

Identify the key decision-making authority and ownership structure for each system.

Free market uses private ownership; command relies on central government planning; mixed combines private and public control; traditional relies on social customs.

Economic systems are categorized by who owns resources and how fundamental economic questions are answered.

Pair each economic system with its exact defining feature.

Free Market -> Private ownership & price signals, Command -> Public ownership & central planning, Mixed -> Dual ownership & market/state co-existence, Traditional -> Customs & historical habits.

Matching structural characteristics defines the essential nature of each economic system.

Key Concept

Classification and defining structural features of economic systems

Question 9573Question →

The table below shows the daily market demand and supply schedules for loaves of bread in a competitive local market:

Price (\text{N})	Quantity Demanded (loaves)	Quantity Supplied (loaves)
$10$	$100$	$20$
$20$	$80$	$40$
$30$	$60$	$60$
$40$	$40$	$80$
$50$	$20$	$100$

What is the market equilibrium price and quantity?

\text{N}30

and

60

loaves

\text{N}10

and

100

loaves

\text{N}50

and

100

loaves

\text{N}20

and

40

loaves

Show answer & explanation

Answer: $\text{N}30$ and $60$ loaves

Answer

\text{N}30

and

60

loaves

Market equilibrium is determined at the price where quantity demanded equals quantity supplied (

Q_d = Q_s

). From the given schedule, at a price of

\text{N}30

, both quantity demanded and quantity supplied are equal to

60

loaves.

Step-by-Step Solution

Identify the equilibrium condition

Market equilibrium is established when Quantity Demanded (

Q_d

) equals Quantity Supplied (

Q_s

At equilibrium, there is neither an excess demand (shortage) nor an excess supply (surplus) in the market.

Locate the row in the table where

Q_d = Q_s

At a price of

\text{N}30

Q_d = 60

loaves and

Q_s = 60

loaves.

This is the only price point in the schedule where buyer demand exactly matches seller supply.

Key Concept

Market Equilibrium Price and Quantity

Question 9574Question →

A consumer allocates a total monetary budget of ₦18,000 to purchase Good $X$ (plotted on the horizontal axis) and Good $Y$ (plotted on the vertical axis). At current market prices, the consumer can afford a maximum of 60 units of Good $X$ or 45 units of Good $Y$ . If the price of Good $X$ decreases by $25\%$ while the price of Good $Y$ and total money income remain constant, what is the absolute value of the slope of the new budget line?

0.5625

0.7500

1.7778

0.4219

Show answer & explanation

Answer: 0.5625

Answer

The absolute value of the slope of the new budget line is 0.5625.

The initial unit prices derived from maximum affordable quantities are Px = ₦300 and Py = ₦400. Decreasing Px by 25% gives a new price Px' = ₦225. Because the slope of the budget line on a standard coordinate system (Good X on the horizontal axis) equals -Px / Py, its magnitude is 225 / 400 = 0.5625.

Step-by-Step Solution

Calculate initial unit prices of Good X and Good Y from budget intercepts

Px = ₦18,000 / 60 = ₦300; Py = ₦18,000 / 45 = ₦400

The maximum quantity of each good attainable with full budget equals Income divided by unit price.

Determine the updated price of Good X after a 25% price decrease

Px' = ₦300 × (1 - 0.25) = ₦225

A 25% price fall reduces the nominal price per unit of Good X by ₦75.

Compute the slope of the new budget line

Absolute slope = Px' / Py = 225 / 400 = 0.5625

The absolute slope of a budget line with Good X on the horizontal axis represents relative prices (Px / Py).

Key Concept

Budget Line Slope and Price Changes

Estimated Time:2m 0s

Question 9575Question →

Match each fundamental characteristic of a traditional economic system with its corresponding operational description.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Subsistence production matches with outputting goods primarily for direct personal consumption. The Barter system matches with the direct exchange of goods for goods. Customary resource allocation matches with economic roles dictated by lineage and cultural traditions. Slow technological innovation matches with static production techniques maintained across generations.

Each feature correctly corresponds to its defining pillar of a traditional economy: subsistence production prioritizes personal consumption over commercial profit, barter facilitates direct trade without currency, customary allocation relies on cultural heritage for resource distribution, and traditional inertia limits technological change.

Step-by-Step Solution

Identify the primary purpose of output in a traditional economic system.

Production focuses on meeting immediate family survival needs, which defines subsistence production.

Traditional economies lack organized market systems aimed at profit maximization.

Analyze how trade occurs without currency.

Direct commodity-for-commodity exchange forms the barter system.

Money as a standardized medium of exchange is generally absent or limited in traditional economies.

Determine how basic economic questions are resolved.

Lineage, social hierarchy, and ancestral customs govern who produces what and how resources are shared.

Neither market price signals nor central state planning dictate economic decisions in a traditional economy.

Examine the rate of technological change.

Strict adherence to inherited practices leads to static techniques and slow innovation.

Cultural norms prioritize stability and tradition over rapid modern technological progress.

Key Concept

Core Pillars and Features of a Traditional Economy

Question 9576Question →

An electricity distribution firm operates in a municipality where substantial initial infrastructural investment causes its long-run average cost to continuously decline over the entire range of market demand. Which of the following best explains the fundamental source of this firm's monopoly power?

Substantial economies of scale that render single-firm production more cost-effective than multi-firm competition, establishing a natural monopoly

Exclusive statutory patent rights granted by the state government preventing rival firms from distributing electrical energy

Complete ownership and cartellized control over all strategic raw materials required for power generation

A perfectly price elastic demand curve that allows the firm to set price above marginal revenue without losing buyers

Show answer & explanation

Answer: Substantial economies of scale that render single-firm production more cost-effective than multi-firm competition, establishing a natural monopoly

Answer

Substantial economies of scale that render single-firm production more cost-effective than multi-firm competition, establishing a natural monopoly.

The correct answer accurately points out that when long-run average cost declines over the entire extent of market demand, significant economies of scale enable a single firm to produce at a lower cost per unit than multiple firms, giving rise to a natural monopoly.

Step-by-Step Solution

Analyze the firm's cost structure provided in the scenario

The firm experiences continuously falling long-run average costs (LRAC) across the entire range of market demand due to massive overhead fixed costs.

This structural condition indicates that minimum efficient scale is large relative to market size.

Classify the specific origin of monopoly power

This cost dynamic defines a natural monopoly rooted in economies of scale.

Duplication of distribution networks by competing firms would raise average costs for all firms and split demand inefficiently.

Differentiate from alternative sources of monopoly power

Natural monopolies arise from technology and cost structures, distinguishing them from legal monopolies (patents/licenses) or key resource control.

Selecting the accurate economic rationale demonstrates mastery of monopoly origin classifications.

Key Concept

Natural Monopoly and Economies of Scale

Question 9577Question →

A profit-maximizing monopolist is guaranteed to earn economic profits in the short run because it is the sole producer in the market.

True

False

Show answer & explanation

Answer: False

Answer

False

The statement is false because a monopolist's short-run financial performance depends on the relationship between price (average revenue) and average total cost at the output quantity where

MR = MC

. If average total cost exceeds price, the firm operates at a short-run economic loss despite being the sole seller in the industry.

Step-by-Step Solution

Identify the profit-maximizing output condition for a monopolist

The monopolist determines output level where Marginal Revenue equals Marginal Cost (

MR = MC

Equating

MR

and

MC

maximizes total profit or minimizes total loss in the short run.

Compare Average Revenue (Price) with Average Total Cost at this output level

Financial performance depends on whether

P > ATC

(economic profit),

P = ATC

(normal profit), or

P < ATC

(economic loss).

Monopoly power enables price setting along the market demand curve, but cannot compel consumers to pay more than their demand curve allows.

Evaluate short-run profit outcomes

If market demand is low or fixed costs are high such that

P < ATC

while

P \ge AVC

, the monopolist continues operating in the short run at an economic loss.

Being the sole producer does not shield a firm from demand deficiencies or excessive production costs.

Key Concept

Short-run monopoly loss and profit determination

Question 9578Question →

During a financial reporting period, a nation exported $640 million worth of physical merchandise and imported$ 810 million worth of physical merchandise. Over the same period, the country recorded + $115 million in net invisible trade (services) and received$ 50 million in net unilateral transfers from abroad. Calculate the nation's current account balance in millions of dollars (use a negative sign to indicate a deficit).

Show answer & explanation

Answer: -5

Answer

The nation's current account balance is -

5 million (a deficit of

5 million).

The Current Account balance is calculated by taking the sum of the balance of visible trade (merchandise exports minus merchandise imports), net invisible trade (services balance), and net unilateral transfers. Here, the visible trade balance is

640 million -

810 million = -

170 million. Adding net invisible trade (+

115 million) and net unilateral transfers (+

50 million) yields a current account balance of -

170 million +

115 million +

50 million = -$5 million.

Step-by-Step Solution

Calculate the Balance of Visible Trade (Merchandise Balance)

640 million -

810 million = -$170 million

Visible trade balance consists strictly of tangible merchandise exports minus merchandise imports.

Calculate the total Current Account Balance

170 million +

115 million +

50 million = -

5 million

The Current Account encompasses the balance of visible trade, net invisible trade (services), and net unilateral/unrequited transfers.

Key Concept

Structure of Balance of Payments: Current Account Balance

Estimated Time:1m 0s

Question 9579Question →

Match each Nigerian infrastructure regulatory or administrative body on the left with its primary statutory function and economic mandate on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Nigerian Electricity Regulatory Commission (NERC) matches with determining cost-reflective electricity tariffs and regulating market rules; Nigerian Communications Commission (NCC) matches with licensing telecommunication service providers and managing spectrum allocation; Infrastructure Concession Regulatory Commission (ICRC) matches with overseeing federal public-private partnership (PPP) frameworks; and National Inland Waterways Authority (NIWA) matches with developing, managing, and regulating river ports and inland water transport.

Each institution is correctly matched to its statutory mandate: NERC handles power tariffs and market standards, NCC handles telecom spectrum and operator licensing, ICRC regulates public-private partnership concessions, and NIWA regulates inland river ports and water transport operations.

Step-by-Step Solution

Identify the primary sector and mandate of the Nigerian Electricity Regulatory Commission (NERC).

NERC governs the power sector, specifically setting electricity tariffs and enforcing operational standards for power generation, transmission, and distribution companies.

Regulatory bodies in the power sector focus on tariff setting and market rules to protect consumers while ensuring financial sustainability.

Identify the primary sector and mandate of the Nigerian Communications Commission (NCC).

NCC governs the telecommunications sub-sector, issuing licenses and managing frequency spectrums.

Independent spectrum regulation and operator licensing are key to maintaining competitiveness in the telecommunications market.

Identify the role of the Infrastructure Concession Regulatory Commission (ICRC).

ICRC facilitates and regulates Public-Private Partnerships (PPPs) across federal infrastructure projects.

Private capital injection into public infrastructure relies on formal concession oversight to manage project risks and contractual obligations.

Identify the role of the National Inland Waterways Authority (NIWA).

NIWA oversees inland water transport, river port development, and navigation safety.

Alternative transport infrastructure such as waterways requires dedicated regulation to relieve land transport congestion.

Key Concept

Institutional and Regulatory Frameworks in Nigeria's Infrastructure Sectors

Question 9580Question →

Government disbursements made directly to citizens, such as old-age pensions and disaster relief grants, without any corresponding exchange of goods or services, are classified as which category of public expenditure?

Transfer payments

Capital expenditure

Developmental expenditure

Productive recurrent expenditure

Show answer & explanation

Answer: Transfer payments

Answer

Government disbursements made directly to citizens without any corresponding exchange of goods or services are classified as transfer payments.

Transfer payments refer to government outlays for which no current goods or productive services are rendered in return. Common examples include social security payments, pensions, and hardship relief grants.

Step-by-Step Solution

Analyze the nature of the government spending mentioned in the scenario.

The spending involves financial outlays directly provided to individuals without requiring productive work or goods in return.

Public expenditure categories are defined by whether the government receives tangible assets, productive services, or simply redistributes funds.

Match these characteristics to standard public finance definitions.

Unilateral disbursements such as pensions and social benefits are classified as transfer payments.

By definition, transfer payments are unilateral financial transfers designed to redistribute income across groups in society.

Key Concept

Transfer Payments in Public Expenditure Classification

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